公开(公告)号：US4091371A

公开(公告)日：1978-05-23

申请号：US709316

申请日：1976-07-28

申请人： Stanley I. Mason, Jr. ,  John E. Pfeifer

发明人： Stanley I. Mason, Jr. ,  John E. Pfeifer

IPC分类号： G08B13/22 ,  G08B13/26

CPC分类号： G08B13/22 ,  G08B13/26

摘要： An intrusion alarm is encased within a housing hung from a doorknob by a conductive strap which makes electrical contact with the doorknob apparatus. A monitoring circuit within the housing is connected to the hanging strap for sensing capacitance changes corresponding to touching of the exterior portion of the doorknob apparatus by a would-be intruder. Alarm means within the housing are activated by the monitoring circuit to generate a local audible alarm or an FM transmission signal sent to a remote receiver or both. A latching circuit maintains the alarm means in an activated state after the capacitance coupled to the doorknob apparatus has been removed, and switch means on the exterior of the housing are provided for resetting the alarm to a non-activated state to permit sensing of a subsequent capacitance change. The alarm further includes means for temporarily disabling the alarm device for a predetermined period of time during which it may be touched without activating an alarm signal. A status indicator is included to provide a flashing signal when the device is actuated and the batteries are supplying power.

摘要翻译： 入侵报警器被封装在通过与门把手设备电接触的导电带从门把手挂起的壳体内。 壳体内的监控电路连接到吊带上，用于感测与由入侵者接触的门把手装置的外部部分相对应的电容变化。 外壳内的报警装置被监控电路激活，以产生一个本地的声音报警或发送到远程接收机的FM发送信号或两者。 闭锁电路在联结到门把手装置的电容已经被去除之后将报警装置维持在激活状态，并且提供外壳外部的开关装置用于将报警器复位到非激活状态以允许感测后续 电容变化。 报警装置还包括在不启动报警信号的情况下临时禁用报警装置预定时间段的装置，在此期间可以触摸报警装置。 包括状态指示器以在设备启动并且电池正在供电时提供闪烁信号。

公开(公告)号：US5716128A

公开(公告)日：1998-02-10

申请号：US668726

申请日：1996-06-24

申请人： Gregory M. Clark ,  Neil M. Brown ,  John E. Pfeifer ,  Kenneth J. Galer

发明人： Gregory M. Clark ,  Neil M. Brown ,  John E. Pfeifer ,  Kenneth J. Galer

IPC分类号： H01R33/08 ,  H01R33/92 ,  H01R33/94 ,  H01R33/945 ,  H05B41/00 ,  F21S3/00

CPC分类号： H05B41/00 ,  H01R33/92 ,  H01R33/942 ,  H01R33/08 ,  H01R33/945

摘要： A power takeoff and lighting unit for a fluorescent fixture is disclosed and comprises an elongate housing having spaced apart connectors on opposite ends for connection to a standard fluorescent lighting fixture. The housing includes a first segment containing electronics for converting power to usable power, such as direct current, and has a power cord that extends outwardly from the segment. Preferably, the unit has a maximum diameter less than twice the diameter of a standard fluorescent tube, and preferably less than 11/2 times the diameter of a standard fluorescent tube, thus providing a compact profile and enabling modular replacement of a standard bulb with the power takeoff lighting unit.

摘要翻译： 公开了一种用于荧光灯具的功率输出和照明单元，并且包括细长壳体，其在相对端上具有间隔开的连接器，用于连接到标准荧光照明器具。 壳体包括第一段，其包含用于将功率转换成可用功率的电子装置，例如直流电，并且具有从所述段向外延伸的电源线。 优选地，该单元具有小于标准荧光管的直径的两倍的最大直径，并且优选地小于标准荧光管的直径的1 + E，fra 1/2 + EE倍，因此提供紧凑的轮廓并且使模块化 更换标准灯泡与动力输出照明单元。

公开(公告)号：US20080111517A1

公开(公告)日：2008-05-15

申请号：US11560186

申请日：2006-11-15

申请人： John E. Pfeifer ,  Fabio A.M. Pereira ,  Herbert E. Flynn

发明人： John E. Pfeifer ,  Fabio A.M. Pereira ,  Herbert E. Flynn

IPC分类号： H02J7/00 ,  G05F5/00 ,  H01L31/042

CPC分类号： H02J7/35 ,  H02J7/0065 ,  H02S40/32

摘要： A charge controller that includes an input interface that receives input DC electrical signals. A converter section converts the input DC electrical signals to output DC electrical signals. Control means is operably coupled to the converter section. The control means includes means for operating the converter section at an estimated maximum power point of the input DC electrical signals. The estimated maximum power point is derived by a novel control scheme that quickly adapts to changing conditions and thus affords optimum energy harvest from the source and improved energy conversion efficiencies.

摘要翻译： 一种充电控制器，包括一个接收输入直流电信号的输入接口。 A转换器部分将输入的DC电信号转换为输出DC电信号。 控制装置可操作地耦合到转换器部分。 控制装置包括用于在输入的DC电信号的估计最大功率点处操作转换器部分的装置。 估计的最大功率点是通过一种新颖的控制方案得出的，该方案可以快速适应不断变化的条件，从而提供从源获得的最佳能量收益并提高能量转换效率。

公开(公告)号：US5398019A

公开(公告)日：1995-03-14

申请号：US171849

申请日：1993-12-22

申请人： Larry W. Barnett ,  John E. Pfeifer

发明人： Larry W. Barnett ,  John E. Pfeifer

IPC分类号： A61B5/103 ,  G08B21/04 ,  G08B21/00

CPC分类号： A61B5/1116 ,  A61B5/103 ,  G08B21/0446 ,  A61B2562/0219 ,  A61B2562/043 ,  A61B2562/166 ,  A61B5/6823 ,  A61B5/6831 ,  A61B5/6838 ,  Y10S200/02

摘要： A torso attitude sensor for attachment to a human A torso at the waist. It senses when a human torso bends past a predetermined lumbosacral angle and sounds an alarm. The sensor may be worn on the left or right side of the waist because it includes two attitude responsive switches which are inclined in directions opposite to each other. The device further includes a counter for determining the number of times the electrical circuit is connected thereby providing the person, or his or her manager, with an indication of the number of times improper bending occurs. A timer is included with which actuation of an attitude responsive switch must persist for a minimum time interval before an alarm signal or excessive bending signal is generated.

摘要翻译： 一个躯干姿态传感器，用于连接到人体腰部的躯干。 感觉人体躯干何时弯曲超过预定的腰骶角，并发出警报。 传感器可以佩戴在腰部的左侧或右侧，因为它包括两个相对于彼此相反方向倾斜的姿态响应开关。 该装置还包括一个计数器，用于确定电路连接的次数，从而向该人或其管理者提供不恰当弯曲发生次数的指示。 包括定时器，在生成报警信号或过度弯曲信号之前，姿态响应开关的致动必须持续最小时间间隔。